EP 2042349 A4 20100901 - RUN-FLAT TIRE

Title (en)

RUN-FLAT TIRE

Title (de)

RUN-FLAT-REIFEN

Title (fr)

PNEU À AFFAISSEMENT LIMITÉ

Publication

EP 2042349 A4 20100901 (EN)

Application

EP 07767427 A 20070622

Priority

JP 2007062618 W 20070622
JP 2006197086 A 20060719

Abstract (en)

[origin: EP2042349A1] This invention relates to a run-flat tire comprising a side reinforcing rubber layer (7) having a crescent shape at section in a side portion (6), a radial carcass (3) comprised of one or more carcass plies, and a reinforcing cord layer (8) in at least a part of a region A ranging from a belt end to a maximum width part of a tire side portion and a region B ranging from a neighborhood of a bead core to a bead filler, wherein a cord constituting the carcass ply and a cord constituting the reinforcing cord layer (8) are a polyketone fiber cord satisfying the following conditions of the following equations (I) and (II): Ã ‰¥ - 0.01 × E + 1.2 Ã ‰¥ 0.02 [wherein Ã is a thermal shrinkage stress at 177°C (cN/dtex); and E is an elastic modulus at 25°C under a load of 49 N (cN/dtex)].

IPC 8 full level

B60C 17/00 (2006.01); B60C 9/00 (2006.01); B60C 13/00 (2006.01)

CPC (source: EP US)

B60C 9/0042 (2013.01 - EP US); B60C 9/08 (2013.01 - EP US); B60C 17/0009 (2013.01 - EP US)

Citation (search report)

[E] EP 1857299 A1 20071121 - BRIDGESTONE CORP [JP]
[ID] JP 2000264012 A 20000926 - BRIDGESTONE CORP
[ID] JP 2004306658 A 20041104 - BRIDGESTONE CORP
See references of WO 2008010388A1

Designated contracting state (EPC)

DE ES FR GB IT

DOCDB simple family (publication)

EP 2042349 A1 20090401; EP 2042349 A4 20100901; EP 2042349 B1 20130313; CN 101505977 A 20090812; CN 101505977 B 20110323; JP 2008024093 A 20080207; JP 4849983 B2 20120111; US 2009320984 A1 20091231; WO 2008010388 A1 20080124

DOCDB simple family (application)

EP 07767427 A 20070622; CN 200780031356 A 20070622; JP 2006197086 A 20060719; JP 2007062618 W 20070622; US 37423707 A 20070622